site/plot planspot.pcc.edu/~rsteele/bct_102/plot_plan.pdf · • these lines are most important so...

BCT 102 Residential Printreading

SITE/PLOT PLAN

Information Required by Most

Building Departments• Dimensioned Property lines

• Location & dimensions of all existing and proposed buildings, additions & structures with dimensions to property lines including projections such as bay windows, fireplaces etc.

• Existing & proposed public improvements such as curb, sidewalks & driveways.

• Dimensions and location of any easements.

Required Info Continued• Curb to Property line or property line to street

centerline.

• Name, address & phone # of owner

• Construction site address

• Site legal address

• North Arrow & drawing scale

• Soil erosion barriers

Information the Builder Needs• Location of utility stubs to property

• Location of utilities at the house

• Elevations lot corners/garage/house FF

• Existing lot contours and elevations

• Proposed grading contour lines

• Trees to be removed

• Soil test to be required?

Rural Sites /Septic System / Wells

• Building Departments require a permit from the State approving septic tanks / drain fields alternate drain fields / wells.

• Sometimes a separate site plan will be devoted to this issue.

• Existing and proposed structures / septic tanks / drain fields / alternate drain fields / wells / contour lines / soils test report

• Plus all other previously listed information

Surveyed Legal Description• The U.S. is surveyed into squares with 36 mile

sides. The main horizontal baseline is intersected by vertical meridians.

• Each of these 1296 sq. mile squares is divided into 36 sq. Townships each have 6 mile sides.

• The 36 mile sq. Townships are divided into 36 Sections with 1 mile sides which are divided further into quarter sections.

• The quarter sections may be further divided and may eventually then be platted into subdivision lots.

U.S. Meridians and Baselines

Willamette Meridian

Willamette Stone

Example: Remodel Job Plot Plan

Typical Residential

Plot Plan

Engineers

Scale

Trees

Site Plan Contour Lines• Contour Lines are drawn on some plot plans to

provide topography elevation information for the site.

• These lines are most important so that grading can be

established and estimated for the project.

• Two types of lines make up the contour lines. Dashed

represent existing grade and solid represents the

finished or final grade.

• The lines are usually drawn at 1‘ elevation intervals.

• Cross sections of the property showing the two grades

allows for easier estimation of dirt moving & hauling.

• Related elevations may be from sea level or 0.00 at an

established point on the property. This is usually the

lowest point.

Very Complete

Rural Plot plan

Information

Property Address

Detailed Site Plan

Set Back

Finish Grade

Property line bearings

Tree

Closest point

1 footExisting grade

contour lines

Details

Property Layout Point needs the Meridian, Township and Section

Property Corner

5'

Minimum side setback

Finish grade line

Minimum setback line

Actual side setback

Property line dimension